No, it was the Gyro Computing Gun Sight MkII, a British sight. The K-14, which looks similar, was the licenced copy, built from plans and specifications supplied to the US, from Ferranti in Edinburgh.
I'll dig out some better pics and drawings, but the pic below shows what it looked like and, if you have a spare K-14, in this scale it would pass.
Hmm. The forum isn't allowing me to upload pics. I'll try to post it separately.